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|
(**************************************************************************************)
(* Copyright (C) 2009 Pietro Abate <pietro.abate@pps.jussieu.fr> *)
(* Copyright (C) 2009 Mancoosi Project *)
(* *)
(* This library is free software: you can redistribute it and/or modify *)
(* it under the terms of the GNU Lesser General Public License as *)
(* published by the Free Software Foundation, either version 3 of the *)
(* License, or (at your option) any later version. A special linking *)
(* exception to the GNU Lesser General Public License applies to this *)
(* library, see the COPYING file for more information. *)
(**************************************************************************************)
(** Apt command line parsing *)
module Pcre = Re_pcre
open ExtLib
open Common
include Util.Logging(struct let label = __FILE__ end) ;;
let blank_regexp = Pcre.regexp "[ \t]+" ;;
(* parse the output of "dpkg -l" *)
let parse_inst ch =
let h = Hashtbl.create 1000 in
try
while true do
let s = (input_line ch) in
match Pcre.split ~rex:blank_regexp s with
|status::name::version::_ when status = "ii"-> Hashtbl.add h (name,version) ()
|_ -> ()
done ;
h
with End_of_file -> h
let parse_inst_from_cmd cmd =
let ch = Unix.open_process_in cmd in
let h = parse_inst ch in
let _ = close_in ch in
h
let parse_inst_from_file file =
let ch = open_in file in
let h = parse_inst ch in
let _ = close_in ch in
h
(**********************************************************************)
(* parse the a popcon file *)
let parse_popcon s =
match Pcre.split ~rex:blank_regexp s with
|rank::name::inst::_ -> (int_of_string rank,name,int_of_string inst)
|_ -> fatal "Parse error %s\n" s
(*****************************************************)
(*
1. apt-get install PACKAGE ...
2. apt-get install PACKAGE=VERSION ...
3. apt-get install PACKAGE/RELEASE ...
4. apt-get remove PACKAGE ...
5. apt-get upgrade ...
6. apt-get dist-upgrade ...
"-t RELEASE" option
*)
type apt_req =
|Install of Format822.vpkgreq list
|Remove of Format822.vpkgreq list
|Upgrade of Format822.suite option
|DistUpgrade of Format822.suite option
let parse_req s =
let _loc = Format822.dummy_loc in
Packages.lexbuf_wrapper Packages_parser.request_top (_loc,s)
let parse_pkg_req suite s =
let (r,((n,a),c),s) = parse_req s in
begin match suite with
|None -> (r,((n,a),c),s)
|Some suite -> (r,((n,a),c),Some suite)
end
;;
(** parse a string containing an apt-get command line
@return a data structure containing the request *)
let parse_request_apt s =
if not (String.exists s "apt-get") then fatal "Not a valid apt-get command" ;
let s = String.slice ~first:((String.find s "apt-get")) s in
let suite = ref None in
(* XXX we parse a lot of options, but we do not handle them ... *)
let options = [
("-t", Arg.String (fun l -> suite := Some(l)), "");
("-s", Arg.Unit (fun _ -> ()), "");
("-y", Arg.Unit (fun _ -> ()), "");
("-v", Arg.Unit (fun _ -> ()), "");
("-f", Arg.Unit (fun _ -> ()), "");
("-o", Arg.String (fun _ -> ()), "");
("--solver", Arg.String (fun _ -> ()), "");
("--no-install-recommends", Arg.Unit (fun _ -> ()), "");
("--install-recommends", Arg.Unit (fun _ -> ()), "");
("--no-upgrade", Arg.Unit (fun _ -> ()), "");
("--no-remove", Arg.Unit (fun _ -> ()), "");
]
in
let reqlist = ref [] in
let anon s = reqlist := s :: !reqlist in
begin
begin try Arg.parse_argv ~current:(ref 0) (Array.of_list (Pcre.split ~rex:blank_regexp s)) options anon ""
with Arg.Bad s -> fatal "%s" s end ;
match List.rev !reqlist with
|"install" :: tl -> Install(List.map (parse_pkg_req !suite) tl)
|"remove" :: tl -> Remove(List.map parse_req tl)
|["upgrade"] -> Upgrade(!suite)
|["dist-upgrade"] -> DistUpgrade(!suite)
|_ -> fatal "Bad apt request '%s'" s
end
;;
let parse_request_aptitude s =
if not (String.exists s "aptitude") then fatal "Not a valid aptitude command" ;
let s = String.slice ~first:((String.find s "aptitude")) s in
let suite = ref None in
(* XXX we parse a lot of options, but we do not handle them ... *)
let options = [
("-t", Arg.String (fun l -> suite := Some(l)), ""); (* default suite *)
("-s", Arg.Unit (fun _ -> ()), "");
("-y", Arg.Unit (fun _ -> ()), "");
("-v", Arg.Unit (fun _ -> ()), "");
("--full-resolver", Arg.Unit (fun _ -> ()), "");
("--safe-resolver", Arg.Unit (fun _ -> ()), "");
("-f", Arg.Unit (fun _ -> ()), ""); (* fix-broken *)
("-r", Arg.Unit (fun _ -> ()), ""); (* with-reccomends *)
("--with-recommends", Arg.Unit (fun _ -> ()), "");
("-R", Arg.Unit (fun _ -> ()), ""); (* without-reccomends *)
("--without-recommends", Arg.Unit (fun _ -> ()), "");
]
in
let reqlist = ref [] in
let anon s = reqlist := s :: !reqlist in
begin
begin try Arg.parse_argv ~current:(ref 0) (Array.of_list (Pcre.split ~rex:blank_regexp s)) options anon ""
with Arg.Bad s -> fatal "%s" s end ;
match List.rev !reqlist with
|"install" :: tl -> Install(List.map (parse_pkg_req !suite) tl)
|"remove" :: tl -> Remove(List.map parse_req tl)
|["upgrade"] | ["safe-upgrade"] | ["dist-upgrade"] -> Upgrade(!suite)
|["full-upgrade"] -> DistUpgrade(!suite)
|_ -> fatal "Bad aptitude request '%s'" s
end
;;
(*****************************************************)
(** for details on the apt_preferences format :
man apt_preferences *)
module Pref = struct
type pin_t =
|Release of (string * string) list
|Origin of string
|Version of string
type package_t = Package of string | Star
type pin_priority_t = int
type apt_preferences = {
package : package_t;
pin : pin_t ;
pin_priority : pin_priority_t
}
end
let comma_regexp = Pcre.regexp "[ \t]*,[ \t]*" ;;
let eq_regexp = Pcre.regexp "[ \t]*=[ \t]*" ;;
let di_regexp = Pcre.regexp "[0-9.]+" ;;
let al_regexp = Pcre.regexp "[a-zA-Z]+" ;;
let parse_pref_labels s =
List.map (fun s' ->
match Pcre.split ~rex:eq_regexp s' with
|[v] when (Pcre.pmatch ~rex:di_regexp v) -> ("v",v)
|[v] when (Pcre.pmatch ~rex:al_regexp v) -> ("a",v)
|[l;v] -> (l,v)
|_ -> fatal "To many '=' in label %s" s
) (Pcre.split ~rex:comma_regexp s)
let general_regexp = Pcre.regexp "^[ \t]*[*][ \t]*$" ;;
let parse_pref_package (_,s) =
if Pcre.pmatch ~rex:general_regexp s then Pref.Star
else Pref.Package (Packages.parse_name (Format822.dummy_loc,s))
let pin_regexp = Pcre.regexp "^([A-Za-z]+)[ \t]+(.*)$" ;;
let parse_pin (_,s) =
try
let substrings = Pcre.exec ~rex:pin_regexp s
in
match Pcre.get_substring substrings 1 with
|"release" -> Pref.Release (parse_pref_labels (Pcre.get_substring substrings 2))
|"version" -> Pref.Version (Pcre.get_substring substrings 2)
|"origin" -> Pref.Origin (Pcre.get_substring substrings 2)
|s -> fatal "Unknown pin type %s" s
with Not_found -> fatal "Unknown pin format %s" s
let parse_preferences_stanza par =
{
Pref.package =
Packages.parse_s ~err:"(MISSING PACKAGE)"
parse_pref_package "Package" par;
pin = Packages.parse_s ~err:"(MISSING PIN)" parse_pin "Pin" par;
pin_priority = Packages.parse_s ~err:"(MISSING Pin-Priority)"
Packages.parse_int "Pin-Priority" par;
}
let rec preferences_parser stanza_parser acc p =
match Format822_parser.stanza_822 Format822_lexer.token_822 p.Format822.lexbuf with
|None -> acc
|Some stanza ->
let st = stanza_parser stanza in
preferences_parser stanza_parser (st::acc) p
(** parse the apt_preferences file *)
let parse_preferences_in ic =
Format822.parse_from_ch (preferences_parser parse_preferences_stanza []) ic
|
